1251354013532 has 24 divisors (see below), whose sum is σ = 2502780327264. Its totient is φ = 536279084352.

The previous prime is 1251354013471. The next prime is 1251354013537. The reversal of 1251354013532 is 2353104531521.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1251354013492 and 1251354013501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251354013537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368978 + ... + 1624454.

It is an arithmetic number, because the mean of its divisors is an integer number (104282513636).

Almost surely, 2^{1251354013532} is an apocalyptic number.

It is an amenable number.

1251354013532 is an abundant number, since it is smaller than the sum of its proper divisors (1251426313732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1251354013532 is a wasteful number, since it uses less digits than its factorization.

1251354013532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291085 (or 1291083 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The spelling of 1251354013532 in words is "one trillion, two hundred fifty-one billion, three hundred fifty-four million, thirteen thousand, five hundred thirty-two".